I recently needed to do a small scripting job in Ruby, and to use the gems required I needed to be on the latest version of Ruby (2.4.1).  My MacBook was on an older version, so I needed to run a quick update. Here is the process I followed:


1. Check the version of Ruby installed on your Mac

Open terminal and type:

ruby -v

2. Install the Ruby Version Manager rvm

In terminal, curl -L https://get.rvm.io | bash -s stable

Once this command has finished running you may need to restart your terminal for rvm to be recognised.

3. Install the latest version of Ruby

rvm install ruby-[version]

In my case this was

rvm install ruby-2.4.1

This took a while to run as it had to install a lot of dependencies and asked for my permission a couple of times.

4. Set the latest version of Ruby as the one you want to use

You should now be running the latest version of Ruby.  You can check as before with the ruby -v command as in step 1. If you’re find that you’re not, you can set this manually.  In terminal type:

rvm use ruby-2.4.1

If you want to set this latest version of Ruby as the default version, in terminal type:

rvm --default use 2.4.1

Don’t forget to replace 2.4.1 with the version number of your latest Ruby.

Hope this is helpful for someone.

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  1. This worked perfectly for me! Thanks so much.

  2. thanks for your help

  3. Thank you, this was great.

  4. so how can i know the latest Ruby is 2.4.1? how can i check the latest number?
    please advise thanks

  5. It sure helped me out tons! Thanks!

  6. Thanks for this – super useful!

  7. Thanks for the info! Very helpful

  8. Thank you so much.

  9. Thank you! It was helpful!

  10. Thank you!

  11. Thanks for sharing… that was just very useful to me!

  12. I really appreciate your help :). Thank you so much for helping me begin my journey to learning code.

  13. This just helped me update to Ruby 3 in 2021 🇿🇦

  14. Thanks for this post!

  15. Thank you sir. Helped me a lot!

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